In hazra law college, there is no dress code ,you can wear whatever you want, but in other law colleges under Calcutta University there is a rule for mandatory dress code(white shirt+black pant+ black blazer)
Merit number varies from year to year. In our year we had 2000+ (12th class + 4 semester marks) to crack Hazra specifically. There is 50 seats in hazra, 30 seats in jogesh, 15 seats in South Calcutta, 15 seats in Surendraanath